Wagon-brake



' [No Model.)

W. L. BOARDMAN.

WAGON BRAKE.

No. 606,403. "Patehted June 2-8, 1898.

INQENTOR W. BOARDMAN.

T0 at whom it may concern:

Artur prion.

W'ALTER L. BOARDMAN, OF'DEOATUR, ILLINOIS.

WAGON-BRAKE.

SPECIFICATION forming part of Letters Patent No. 606,403, dated June 28,1898. Application filed January 17, 1898. Serial No. 666.918. (Nomodel.)

Be it known that I, WALTER L. BOARDM'AN, of Decatur, in the county ofMacon and State of Illinois, have invented a certain new and usefulCombined Brake-Lever,Ratchet Rack, and WVhip-Socket for WVagons, ofwhich the following is a specification.

The invention relates to certain details of construction whereby variousadvantages are obtained. hereinafter described and it is defined-in theappended claims.

In the drawings forming part of this specification, Figure 1 is a sideelevation of the front end of a side of a wagon-bed with my inventionattached thereto. Fig. 2 is an elevation of the inner surface of theratchetrack. Fig. 3 is an elevation of the outer surface of the combinedwhip-socket and pivotarm for the brake-lever. Fig. 4 is an edgeelevation of the brake-lever. Fig. 5 is a vertical section through thewhip-socket. Fig. 6 is a plan of a yielding ring contained in a groovein the whip-socket.

The whip-socket 1 is approximately semicylindrical in cross-section, itis open from end to end, a portion of its convex or outer surface is cutaway, as shown at 5, and one of the side walls so exposed is builtoutward to form a rib 4. The arm 2, on which the brake-lever is pivoted,is east integral with the whip-socket. It extends obliquely downward andbackward from the lower end of the socket, and it has at its end aperforated boss 3, which acts as a pivot-bearing for the brake lever.The ratchet-rack 7 is areformed, toothed on its under surface, has a Iver 14 is pivoted on the boss 3 of arm 2 and the upper end of thebrake-lever, and a rod 18 connects the grip-lever with the weighted endof the pawl. A strap 19 (shown in Fig.

It is exemplified in the structure 1) is fastened to the brake-leverabove the rack and below the pawl, and it extends inward around the rackand the pawl in a manner. to embrace the rack somewhat loosely and tosupport an end of the pivot-pin of the pawl.

-The whip-socket is preferably grooved internally, as shown at 6, andprovided in such groove with a yielding ring 20, of rubber or the like,which ring has an external shape approximating that shown in Fig. 6. Itis the purpose of the yielding ring to aid in retaining the whip firmlyin the socket.

The rack, the whip-socket, and the pivot-- arm are secured to the sideof the bed by bolts 12, 13, and 21. The rack fits against thewhip-socket, with its groove 9 fitting the rib 4, which compels the rackto assume a po sition concentric with the hole in boss 3 of arm 2, andthe bolt 12 aids in holding both the rack and the whip-socket inposition. The bolt has a further function-namely, to form the bottom ofthe whip-socket, and it does this in a manner to support the Whipeffectually, vhile permitting dirt and the like to pass through. Thebolt extends through the center of the opening through the socket, andthere is plenty of space on the sides of the belt for passage of dirt.The bolt 13 holds the extended end of the rack in position, and the bolt21 aids in holding arm 2 in position and acts as a pivot for thebrake-lever.

The brake-lever is outside the rack, where it cannot rub against thebed, and it is held in operative position by strap 19.

The pawl is counterbalanced to engage the rack by force of gravity, andthe counterbalanced end may be used to prevent extreme jar on the arm ofthe operator. To effect this result, the grip-lever is pressedsufficiently hard to disengage the pawl and force the rounded surface 16against the teeth, and the pressure may be regulated so as to developjust enough friction to permit the lever to mo ve slowly backward andrelieve the brake.

The lever is connected from hole 22 with vertical Whip-socket open fromend to end and having an integral pivot-arm extending downward andbackward, a ratchet-rack fastened at' one end to the whip-socket by abolt Which extends through the socket and forms a support for the Whip,such rack being extended in an arc concentric with the end of thepivot-arm and a brake-lever pivoted on the end of the arm, substantiallyas set forth.

2. In aWagon-brake, the combination of the rack having teeth in itsunder surface, the

brake-lever pivoted concentric with the rack, the pawl 011 the leverhaving the engaging end 15 and the rounded counterbalanein g end 16adapted to bear frietionally against the teeth, substantially as setforth.

In testimony whereof I sign my name in the presence of two subscribingWitnesses.

VVALTER'L. BOARDMAN. Witnesses:

E. S. MCDONALD, RosA VOELCKER.

